Home / 646,724.52-892,489.12-371,127.29

Finding the Fourth Proportional to 646,724.52, 892,489.12 and 371,127.29

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Solution

The fourth proportional to 646,724.52, 892,489.12 and 371,127.29 is: 512,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    646,724.52 : 892,489.12 = 371,127.29 : x
  2. Step 2: Convert to fraction form
    646,724.52/892,489.12 = 371,127.29/x
  3. Step 3: Cross multiply
    646,724.52x = 892,489.12 × 371,127.29
  4. Step 4: Simplify right side
    646,724.52x = 331,227,063,069.82
  5. Step 5: Solve for x
    x = 331,227,063,069.82/646,724.52
  6. Step 6: Final answer
    x = 512,160.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.